Example of Kosmtik localconfig files used for HDM rendering

localconfig.js

exports.LocalConfig = function (localizer, project) {
    var country = 'burundi',
        centers = {
            hispaniola: [-71.7325, 19.1075, 9],
            burundi: [29.9377, -3.4216, 9],
            sierraleone: [-13.2366965, 8.4732210, 9],
            chad: [16.56874, 8.68063, 9],
            mauritania: [-11.558, 19.725, 9]
        };
    project.mml.compareUrl = "http://{s}.tile.openstreetmap.fr/hot/{z}/{x}/{y}.png";
    localizer.where('center').then(centers[country]);
    localizer.where('Layer').if({'Datasource.type': 'postgis'}).then({
        "Datasource.dbname": country,
        "Datasource.password": "",
        "Datasource.user": "ybon",
        "Datasource.host": ""
    });
    localizer.where('Layer').if({id: 'hillshade'}).then({'Datasource.file': '/home/ybon/Code/maps/hdm/DEM/data/hillshade.vrt'});
    localizer.where('Layer').if({id: 'contour_line'}).then({'Datasource.file': '/home/ybon/Code/maps/hdm/DEM/data/contour-25m.shp'});
    localizer.where('Layer').if({id: 'land-high'}).then({'Datasource.file': '/home/ybon/Data/geo/shp/land-polygons-split-3857/land_polygons.shp'});
    localizer.where('Layer').if({id: 'land-low'}).then({'Datasource.file': '/home/ybon/Data/geo/shp/simplified-land-polygons-complete-3857/simplified_land_polygons.shp'});
};

localconfig.json

[
    {
        "where": "center",
        "then": [-70.7481114, 19.4959913, 9]
    },
    {
        "where": "Layer",
        "if": {
            "Datasource.type": "postgis"
        },
        "then": {
            "Datasource.dbname": "hispaniola",
            "Datasource.password": "",
            "Datasource.user": "ybon",
            "Datasource.host": ""
        }
    },
    {
        "where": "Layer",
        "if": {
            "id": "hillshade"
        },
        "then": {
            "Datasource.file": "/home/ybon/Code/maps/hdm/DEM/data/hillshade.vrt"
        }
    },
    {
        "where": "Layer",
        "if": {
            "id": "contour_line"
        },
        "then": {
            "Datasource.file": "/home/ybon/Code/maps/hdm/DEM/data/contour-25m.shp"
        }
    },
    {
        "where": "Layer",
        "if": {
            "id": "land-high"
        },
        "then": {
            "Datasource.file": "/home/ybon/Data/geo/shp/land-polygons-split-3857/land_polygons.shp"
        }
    },
    {
        "where": "Layer",
        "if": {
            "id": "land-low"
        },
        "then": {
            "Datasource.file": "/home/ybon/Data/geo/shp/simplified-land-polygons-complete-3857/simplified_land_polygons.shp"
        }
    }
]